Bipolar transistors

Diodes

ESD protection, TVS, filtering and signal conditioning

MOSFETs

SiC MOSFETs

GaN FETs

IGBTs

Analog & Logic ICs

Automotive qualified products (AEC-Q100/Q101)

TL431AQDBZR

Adjustable precision shunt regulator

Three-terminal shunt regulator family with an output voltage range between

Vref = 2.495 V and 36 V, to be set by two external resistors.

Reference voltage

tolerance (Vref)

 Temperature range (Tamb)

Pinning configuration

0 ° C to 70 °C

-40 ° C to 85 °C

-40 ° C to 125 °C

2.0 %

TL431CDBZR

TL431IDBZR

TL431QDBZR

normal pinning

TL431FDT

normal pinning

TL431MFDT

mirrored pinning

1.0 %

TL431ACDBZR

TL431AIDBZR

TL431AQDBZR

normal pinning

TL431AFDT

normal pinning

TL431AMFDT

mirrored pinning

0.5 %

TL431BCDBZR

TL431BIDBZR

TL431BQDBZR

normal pinning

TL431BFDT

normal pinning

TL431BMFDT

mirrored pinning

Alternatives

Features and benefits

  • Programmable output voltage up to 36 V

  • Three different reference voltage tolerances:

    • Standard grade: 2 %

    • A-Grade: 1 %

    • B-Grade: 0.5 %

  • Typical temperature drift: 9 mV (in a range of 0 °C up to 70 °C)

  • Low output noise

  • Typical output impedance: 0.2 Ω

  • Sink current capability: 1 mA to 100 mA

  • AEC-Q100 qualified (grade 1)

Applications

  • Shunt regulator

  • Precision current limiter

  • Precision constant current sink

  • Isolated feedback loop for Switch Mode Power Supply (SMPS)

Parametrics

Type number Package version Package name Size (mm) Pinning configuration Tamb (°C) Vref tolerance (%) Vref (V) VKA (V) IK (mA)
TL431AQDBZR SOT23 SOT23 2.9 x 1.3 x 1 normal -40~125 1 2.495 36 100

Package

Type number Orderable part number, (Ordering code (12NC)) Status Marking Package Package information Reflow-/Wave soldering Packing
TL431AQDBZR TL431AQDBZR,215
(935288022215)		 Active CF% SOT23
(SOT23) 		SOT23 REFLOW_BG-BD-1
WAVE_BG-BD-1
SOT23_215
TL431AQDBZRVL
(935288022235)		 Active CF% SOT23_235

Environmental information

Type number Orderable part number Chemical content RoHS RHF-indicator
TL431AQDBZR TL431AQDBZR,215 TL431AQDBZR rohs rhf rhf
TL431AQDBZR TL431AQDBZRVL TL431AQDBZR rohs rhf rhf
Quality and reliability disclaimer

Series

Documentation (11)

File name Title Type Date
TL431_FAM Adjustable precision shunt regulator Data sheet 2024-04-30
SOT23 3D model for products with SOT23 package Design support 2019-01-22
Nexperia_package_poster Nexperia package poster Leaflet 2020-05-15
SOT23_mk plastic, surface-mounted package; 3 terminals; 1.9 mm pitch; 2.9 mm x 1.3 mm x 1 mm body Marcom graphics 2017-01-28
SOT23 plastic, surface-mounted package; 3 terminals; 1.9 mm pitch; 2.9 mm x 1.3 mm x 1 mm body Package information 2022-10-12
SOT23_215 Reel pack for SMD, 7"; Q3/T4 product orientation Packing information 2020-04-29
SOT23_235 Reel pack for SMD, 11"; Q3/T4 product orientation Packing information 2020-06-01
TL431AQDBZR_Nexperia_Product_Reliability TL431AQDBZR Nexperia Product Reliability Quality document 2024-04-22
REFLOW_BG-BD-1 Reflow soldering profile Reflow soldering 2021-04-06
TL431 TL431 SPICE model SPICE model 2020-10-26
WAVE_BG-BD-1 Wave soldering profile Wave soldering 2021-09-08

Support

If you are in need of design/technical support, let us know and fill in the answer form we'll get back to you shortly.

Models

File name Title Type Date
TL431 TL431 SPICE model SPICE model 2020-10-26
SOT23 3D model for products with SOT23 package Design support 2019-01-22

Ordering, pricing & availability

Type number Orderable part number Ordering code (12NC) Status Packing Packing Quantity Buy online
TL431AQDBZR TL431AQDBZR,215 935288022215 Active SOT23_215 3,000 Order product
TL431AQDBZR TL431AQDBZRVL 935288022235 Active SOT23_235 10,000 Order product

Sample

As a Nexperia customer you can order samples via our sales organization.

If you do not have a direct account with Nexperia our network of global and regional distributors is available and equipped to support you with Nexperia samples. Check out the list of official distributors.

How does it work?

The interactive datasheets are based on the Nexperia MOSFET precision electrothermal models. With our interactive datasheets you can simply specify your own conditions interactively. Start by changing the values of the conditions. You can do this by using the sliders in the condition fields. By dragging the sliders you will see how the MOSFET will perform at the new conditions set.

Interactive datasheet

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
TL431AQDBZR TL431AQDBZR,215 935288022215 SOT23 Order product
TL431AQDBZR TL431AQDBZRVL 935288022235 SOT23 Order product